The graph shows a proportional relationship between x and y.Find the constant of proportionality (r) and write an equation to re
present the relationship.
2 answers:
Answer:
r=3
Step-by-step explanation:
We are given that a graph.
The graph shows a proportional relationship between x and y.
From given graph we can see that when x increases then y is also increases.
Therefore,
Where r=proportionality constant
x=5 and y=15
Substitute the values then we get
Substitute the value of r
Then, the equation to represent the relationship is given by
You might be interested in
add 2q to both sides.
subtract 5 to both sides.
divide 5 to both sides.
the answer is:
Answer:
0% probability of getting a mean temperature of 98.2 degrees F or lower.
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a random variable X, with mean and standard deviation
, a large sample size can be approximated to a normal distribution with mean
and standard deviation
.
Normal probability distribution
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
Find the probability of getting a mean temperature of 98.2 degrees F or lower.
This is the pvalue of Z when X = 98.2. So
has a pvalue of 0.
So there is a 0% probability of getting a mean temperature of 98.2 degrees F or lower.